2. 外语
  3. A. a long life expectancy for most people B. artists are adroit in dealing with their painting subject C. engage in the medica

A. a long life expectancy for most people B. artists are adroit in dealing with their painting subject C. engage in the medica

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问题 A. a long life expectancy for most people
B. artists are adroit in dealing with their painting subject
C. engage in the medical profession
D. careful study and experimentation
E. the chief centers for medical care in most countries
F. science and technology
Medical progress, improved health care, and better living conditions have ensured______.
选项
答案A
解析 见第四段“Medical progress in the control of infections diseases…and living conditions have given people a longer life expectancy.”
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